| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Hannes Dorbath <light(at)theendofthetunnel(dot)de> |
| Cc: | Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Teodor Sigaev <teodor(at)sigaev(dot)ru>, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Segmentation fault with 8.3 FTS ISpell |
| Date: | 2008-01-15 20:43:59 |
| Message-ID: | 12281.1200429839@sss.pgh.pa.us |
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| Lists: | pgsql-general |
Hannes Dorbath <light(at)theendofthetunnel(dot)de> writes:
> Alvaro Herrera wrote:
>> Can you please provide a backtrace from gdb?
> I hope that contains it: http://theendofthetunnel.de/backtrace.log
Hmmm --- one thing that jumps out at me is that SplitToVariants assumes
(in four places) that the SplitVar.stem arrays can't overflow. Now 1024
entries does sound like plenty, but perhaps a malformed dictionary could
cause the code to overrun that? Or an extremely long input word?
Personally I'd put some checks on nstem in there ...
regards, tom lane
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